Formula: C12H13N3In 2021 ,《Electronic effects on polypyridyl Co complex-based water reduction catalysts》 appeared in RSC Advances. The author of the article were Guo, Xusheng; Li, Chao; Wang, Weibo; Zhang, Baowen; Hou, Yuanjun; Wang, Xuesong; Zhou, Qianxiong. The article conveys some information:
Three new isomeric cobalt complexes of TPA (tris(2-pyridylmethyl)amine) based on methoxy substitution at the ortho, meta and para positions, resp., were constructed and their photocatalytic proton reduction efficiencies were compared. It was found that there are good linear correlations with the Hammett constants of the substituents for the computed Co-N bond lengths, redox potentials of CoII/I and CoI/0 events, and the photocatalytic activities of the complexes. The ortho-substituted Co complex distinguished itself from the others remarkably in all these comparisons, demonstrating the presence of a steric effect besides the electronic effect. For other examined complexes, a stronger electron-donating substituent may lead to a higher hydrogen evolution efficiency, suggesting that the formation of a Co(III) hydride intermediate is the rate-limiting step. In the part of experimental materials, we found many familiar compounds, such as Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0Formula: C12H13N3)
Bis(pyridin-2-ylmethyl)amine(cas: 1539-42-0) is a secondary amine with two picolyl substituents. The compound is a tridentate ligand in coordination chemistry and commonly used to produce Zn-based chemosensors/probes, such as Zinpry.Formula: C12H13N3